Determination of neptunium in environmental samples by extraction chromatography after valence adjustment

Neptunium(V) ions are unstable in acid media, which limits their extraction on chromatographic resins. We developed a novel analytical method to measure Np by either α-spectrometry or inductively coupled plasma mass spectrometry (ICP-MS) after extraction chromatography as Np(VI). We investigated the...

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Published inApplied radiation and isotopes Vol. 68; no. 12; pp. 2132 - 2139
Main Authors Guérin, Nicolas, Langevin, Marc-Antoine, Nadeau, Kenny, Labrecque, Charles, Gagné, Alexandre, Larivière, Dominic
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.12.2010
Subjects
Alpha spectrometry
Chromatography - methods
Extraction chromatography
Inductively coupled plasma mass spectrometry
Mass Spectrometry
Neptunium - analysis
Neptunium(VI)
Potassium bromate
UTEVA
Alpha spectrometry
Neptunium(VI)
Inductively coupled plasma mass spectrometry
UTEVA
Extraction chromatography
Potassium bromate
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Summary:Neptunium(V) ions are unstable in acid media, which limits their extraction on chromatographic resins. We developed a novel analytical method to measure Np by either α-spectrometry or inductively coupled plasma mass spectrometry (ICP-MS) after extraction chromatography as Np(VI). We investigated the reactivity of various oxidizing reagents, and determined the retention capacity of Np(IV, V, and VI) on various extraction chromatographic supports. A simple method using two UTEVA resins was used to rapidly detect Np in soil and sediment samples.
Bibliography:ObjectType-Article-1
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ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2010.06.021